Accessory for a tabletop



FIG. 1 is a perspective view of an accessory design, showing my new design within an environment of use;

FIG. 2 is another perspective view of an accessory of FIG. 1;

FIG. 3 is a top plan view of the accessory of FIG. 1;

FIG. 4 is a side elevation view of the accessory of FIG. 1, with all sides being identical thereto; and,

FIG. 5 is a bottom plan view of the accessory of FIG. 1.

The broken lines in FIG. 1 illustrating a table including a tabletop represents an environment of the accessory for the tabletop, and forms no part of the claimed design. 

CLAIM The ornamental design for an accessory for a tabletop, as shown and described. 